O.S.Engine 1EG00 - O.S. MAX-B21 3.5cc Buggy Engine

O.S.Engine - MAX-B21 3.5cc 1/8 Buggy & 1/8GT Engine

Made for 1/8 nitro Offroad and 1/8GT
MAX-B21 is easy to use from entry-level users to sports users and has excellent cost performance. Based on the O.S.SPEED B2104 series engine, it has a well-balanced combination of smooth speed and power delivery and can be used in both on and off-road racing situations.

Features:

• The crankcase is based on the O.S.SPEED B2104 crankcase
• Piston and sleeve is improved based on O.S.SPEED B2104
• The connecting rod is the same as the O.S.SPEED buggy engines

This engine will replace the MAX-21 XR-B VER.3 and MAX-21 XZ-B VER.2.

Specs:

• Displacement: 3.49cc
• Bore: 16.27mm
• Stroke: 16.80mm
• Output:
• Practical rpm range:
• Weight: 352g

Included:

• P3 glow plug
• Reducer Venturi: 6mm (Orange) & 7mm (Yellow)
• Exhaust seal ring
• Dust cap set: 3, 16 & 18mm